Operator

...(_:)

Returns a partial range extending upward from a lower bound.

Declaration

postfix static func ... (minimum: Subscribers.Demand) -> PartialRangeFrom<Subscribers.Demand>

Parameters

minimum

The lower bound for the range.

Discussion

Use the postfix range operator (postfix ...) to create a partial range of any type that conforms to the Comparable protocol. This example creates a PartialRangeFrom<Double> instance that includes any value greater than or equal to 5.0.

let atLeastFive = 5.0...

atLeastFive.contains(4.0)     // false
atLeastFive.contains(5.0)     // true
atLeastFive.contains(6.0)     // true

You can use this type of partial range of a collection’s indices to represent the range from the partial range’s lower bound up to the end of the collection.

let numbers = [10, 20, 30, 40, 50, 60, 70]
print(numbers[3...])
// Prints "[40, 50, 60, 70]"

See Also

Performing Mathematical Operations

static func * (Subscribers.Demand, Int) -> Subscribers.Demand

Returns the result of multiplying a demand by an integer.

static func *= (inout Subscribers.Demand, Int)

Multiplies a demand by an integer, and assigns the result to the demand.

static func + (Subscribers.Demand, Int) -> Subscribers.Demand

Returns the result of adding an integer to a demand.

static func += (inout Subscribers.Demand, Subscribers.Demand)

Adds two demands, and assigns the result to the first demand.

static func += (inout Subscribers.Demand, Int)

Adds an integer to a demand, and assigns the result to the demand.

static func - (Subscribers.Demand, Subscribers.Demand) -> Subscribers.Demand

Returns the result of subtracting one demand from another.

static func - (Subscribers.Demand, Int) -> Subscribers.Demand

Returns the result of subtracting an integer from a demand.

static func -= (inout Subscribers.Demand, Subscribers.Demand)

Subtracts one demand from another, and assigns the result to the first demand.

static func -= (inout Subscribers.Demand, Int)

Subtracts an integer from a demand, and assigns the result to the demand.

static func ... (Subscribers.Demand) -> PartialRangeThrough<Subscribers.Demand>

Returns a partial range up to, and including, its upper bound.